156 FLOWERS AND INSECTS—XXVI 
Polygonum persicaria (int).—Blooms May 10-October 26; 13 
visitors observed, August 4-September 15; Mis, W. 
Long-tongued Bees (1)—Bomb.: Bombus impatiens ¢ 9. 
Short-tongued Bees (4)—Halict.: Chloralictus sparsus ¢ 9, se, 
fq, versatus 9, fq, zephyrus 2, Halictus lerouxii ¢. 
Other Hymenoptera (4)—Philanth.: Cerceris finitima; Vesp.: 
Polistes annularis; Crabron.: Solenius; Ozxybel.: Notoglossa 
frontalis. 
Diptera (3)—Syrph.: Syritta ab; Bombylt.: Anthrax alternata 
f; Anthomy.: Phorbia acra. 
Lepidoptera (1)—Papilion.: Pontia. 
Polygonum scandens.—Blooms July 10-October 1; 64 species 
and 395 individuals, August 22-September 15; Mis, W. 
Long-tongued Bees (2:5)—Ceratin.: Ceratina 9, 1; Nomad.: 
Nomada vicina 0, 4. 
Short-tongued Bees (10: 169)—Halict.: Chloralictus sparsus ¢, 
144, versatus J 9, 3, zephyrus 1, 9; Sphecodini: Machaeris stygia 
3, 3; Prosopid.: Prosopis pygmaea 4, 1, saniculae J, 1, ziziae 9, 1; 
Collet.: Colletes americanus ¢, 1; Andren.: Pterandrena solidaginis 
?, 1; Panurg.: Pseudopanurgus compositarum J @, 5. 
Other Hymenoptera (22: 42)—Sphec.: Sphex gracilis 2, vul- 
garis 1; Philanth.: Cerceris finitima 1, fumipennis 1, Philanthus 
punctatus 1; Vesp.: Vespula germanica 1; Humen.: Ancistrocerus 
tigris 2, Eumenes fraternus 1, Leionotus perennis 1, scrophulariae 
3; Crabron.: Anacrabro 1, Lindenius errans 2, Rhopalum scutel- 
latum 1; Oxybel.: Notoglossa americana 2,-frontalis 4; Larr.: As- 
tatus bicolor 1, Larropsis 3; Pompil.: Lophopompilus atrox 1; 
Chrysid.: Hedychrum violaceum 2; Chalcid.: Leucospis 1, Peri- 
lampus cyaneus 2, platygaster 8. 
Diptera (25: 74)—Mycetophil.: Sciara atrata 19; Syrph.: Mi- 
lesia 3, Syritta 2; Tachin.: Actia 2, Archytas analis 1, aterrima 3, 
Cyphocera 4, Exorista confinis 1, Hypostena dunningii 1, Lin- 
naemyia 1, Pachyophthalmus signatus 1, Paradidyma 1, Senotainia 
trilineata 5, Siphoplagia flaccidirostris 1, Sturmia phyciodis 1, 
Trichopoda pennipes 7, Trichophora 1, Xanthomelana 2; Sarco- 
phag.: Helicobia helicis 5, Sarcophaga assidua 5, cimbicis 3; Musce.: 
Lucilia caesar 1, Musca 1, Pseudopyrellia 2; Ephydr.: Ochthera, 
pred, n, 1. 
Lepidoptera (4: 4)—Nymphal.: Vanessa atalanta 1; Lycaen.: 
Everes 1; Papilion.: Pieris 1; Hespert.: Limochores taumas 1. 
Coleoptera (1: 1)—Zampyr.: Chauliognathus pennsylvanicus 1. 
